{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xc6bb62c07a15816e0d909ffaa536a2c9eb56fc10499f9e6a515545fedaaa865f",
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    "signer": "0x02624B847405E297b9E71e08B236875Bcc52D6C0",
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  }
}